NOVAVAX COVID-19 vaccine has shown ________ much overall efficacy in Phase 3 trials ?

a) 95 percent
b) 92 percent
c) 91 percent
d) 90 percent

The US Biotechnology Company NOVAVAX announced on June 14, 2021, that its COVID-19 vaccine provides 100% protection against the moderate and severe symptoms of the disease and has shown 90.4 percent efficacy overall in phase 3 trials.